Biology TEKS Correlations
(13) Science concepts. The student knows the significance of plants in the
environment. The student is expected to:
(A)evaluate the significance of structural and physiological adaptations of plants to their environments; and
50.
The plant above will bend toward the window over time. This behavior is called phototropism and is
controlled by plant hormones. Phototropism benefits the plant by —
A.
B.
C.
D.
keeping the leaves at a constant temperature
allowing the leaves to absorb more carbon dioxide
encouraging more leaves to grow on the stem
orienting the leaves to absorb more light energy
This item asks students to know more than just the meaning of the term phototropism. This
item could also be keyed to be under the Biology TEKS (7)(B), illustrate the results of natural
selection, since the correct answer requires students to understand why phototropism would
exist.
51.
All of the following adaptations help desert plants survive the extremes of a hot and dry climate except —
A.
B.
C.
D.
Growing long roots
Having leaves with reduced size
Opening their stomates during the day
Completing their life cycle in a relatively short time
Charles A. Dana Center
Science TEKS Toolkit
www.sciencetekstoolkit.org
52.
Chloroplasts are plant cell organelles that are necessary for photosynthesis. In most plants which of the
following organs probably has the most chloroplast in its tissues?
A.
B.
C.
D.
Flowers
Leaves
Stems
Roots
Charles A. Dana Center
Science TEKS Toolkit
www.sciencetekstoolkit.org